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Security report for clickadu.com

Clickadu · Media · Czech Republic

Medium risk. 6 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

61/100

Risk levelMedium

0–100, higher is better. How it is calculated

Clickadu is a professional and established advertising network specializing in providing a wide range of ad formats including banner ads, popunder ads, instant text messages, in-page push notifications, video pre-rolls, and skim ads. The company targets both publishers and advertisers globally, offering a self-serve platform and comprehensive advertising solutions. Their market position is strong, supported by a medium-sized operation based in the Czech Republic, with a consistent brand presence and positive partner testimonials. Technically, the website is built on WordPress with modern frameworks such as Bootstrap and uses Google Tag Manager for analytics and advertising tracking. The site is well-optimized for SEO, mobile-friendly, and performs well with fast loading times. However, there is a lack of explicit security headers and incident response policies, which could be improved to enhance security posture. Security-wise, the site uses HTTPS and avoids exposing sensitive data, but the absence of detailed security policies and vulnerability disclosure mechanisms indicates room for improvement. The WHOIS data is missing or privacy-protected without explanation, which slightly reduces trust but is mitigated by the professional website and active social media presence. Overall, Clickadu presents a credible and professional advertising network with strong technical implementation and good business credibility. Strategic improvements in security transparency and WHOIS data clarity would further enhance trust and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
68/ 100 · Medium
Checks completed
7of 7

NIS2 Art. 21(2)

  1. (a) Risk analysis and security policies: Not visible from outside
  2. (b) Incident handling: One indicator
  3. (c) Business continuity, backups and crisis management: Not visible from outside
  4. (d) Supply chain security: Not visible from outside
  5. (e) Secure acquisition, development and maintenance, including vulnerability handling: Partly checked
  6. (f) Assessing the effectiveness of security measures: Not visible from outside
  7. (g) Cyber hygiene and security training: Not visible from outside
  8. (h) Cryptography and encryption: Partly checked
  9. (i) HR security, access control and asset management: One indicator
  10. (j) Multi-factor authentication and secured communications: Not visible from outside

This scan rated NIS2 with an earlier keyword method that is no longer shown; rescan for the per-article view. Risk management, continuity, supply chain, training, MFA, management oversight (Art. 20) and incident reporting (Art. 23) need internal evidence, and Guard cannot tell whether NIS2 applies to this organisation.

GDPR is indicative only, based on publicly visible signals: Articles 7, 12, 13 and 32 of Regulation (EU) 2016/679 and Article 5(3) of the ePrivacy Directive. Not a certification or legal assessment.

Priority findings

6 findings rated critical or high. Fix these first.

  1. Security headers

    Security headers are instructions your web server sends to every visitor’s browser. Missing ones leave visitors more exposed to attacks such as clickjacking and injected scripts.

    • High

      Missing Strict-Transport-Security header

      Forces HTTPS connections

      What to do: Add "Strict-Transport-Security: max-age=31536000; includeSubDomains; preload"

      • CWE-319
      • OWASP A04:2025
      • ASVS V3.4.1
    • High

      Missing X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

    • High

      Missing Content-Security-Policy header

      Controls resources the browser is allowed to load

      What to do: Implement a Content-Security-Policy appropriate for your application

      • ASVS V3.4.3
      • OWASP Secure Headers: OWASP Secure Headers Project recommends Content-Security-Policy: default-src 'self'; form-action 'self'; base-uri 'self'; object-src 'none';…

  2. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

  3. SSL/TLS

    TLS encrypts the connection and proves the site is really yours. Weak or expiring certificates trigger browser warnings and put traffic at risk.

    • High

      Weak Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1

Need hands-on remediation? Email guard@offseq.com

Keep watching clickadu.com

This scan found 27 issues across 6 checks. Monitoring re-runs those checks daily, emails you when something material changes and records each fix, so you can show progress.

Daily monitoring

Recommended

€25per month

  • TLS certificates and expiry
  • DNS records
  • SPF, DKIM and DMARC
  • Security headers
  • GDPR and NIS2 posture
  • Exposed services
  • Third-party trackers
  • Security score drift

Email alerts on material changes and an exportable JSON history of every change.

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Results by check

Each check with its score, findings and the evidence it collected.

How this score is calculated

The security score runs 0–100, higher is better. It is the plain average of the security checks that completed in this scan, each counted equally. A check that could not run is left out: it counts neither as a pass nor as a fail.

Counted in this score

SSL/TLS
47
Security headers
15
Email security
55
DNS health
80
Network security
100
GDPR outside view
68
Average
61

Not counted

  • NIS2 outside view: Re-weights evidence from the TLS, email, DNS, network and hygiene checks, so counting it would count that evidence twice. Shown on its own.
  • OffSeq Observations: An AI reading of the site, useful context but not reproducible evidence. Shown on its own.

Findings that cap the score at 49

Each of these is serious on its own, so while any is present the site cannot rate better than high risk, however good the other checks are.

  • The certificate is not trusted by browsers
  • The website is not served over HTTPS
  • A database, remote desktop, file-sharing or Telnet service is reachable from the internet
  • The page loads a script from a compromised source
  • The domain registration has expired
  • SPF authorises every server to send mail as the domain

Partial scans

When the site blocks Guard or most checks cannot run, the score covers only the checks that ran (usually DNS and email), is capped at 75 and is shown as partial, without a risk level.

Risk levels

  • Critical0–25
  • High26–49
  • Medium50–75
  • Low76–100

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

Clickadu operates as a leading ad network in the digital advertising industry, focusing on delivering diverse ad formats to publishers and advertisers worldwide. Their business model revolves around monetizing traffic and providing advertising solutions with a self-serve platform that supports campaign automation and transparency. The company benefits from a broad partner ecosystem, including referral programs and active participation in industry events. Their competitive advantages include a wide variety of ad formats, fraud and bot filtering using machine learning, multiple payment methods, and fast campaign moderation. Growth indicators are positive, supported by extensive impressions and global GEO coverage. The company maintains a strong online presence with active social media channels and partner testimonials, reinforcing its market position.

Security posture

The security posture of Clickadu is moderate to good. The website enforces HTTPS, which is mandatory for secure communications. However, there is no evidence of advanced security headers such as Content-Security-Policy or X-Frame-Options, which are recommended best practices. No explicit security policies, incident response plans, or vulnerability disclosure programs are publicly available, indicating potential compliance gaps. The absence of a security.txt file or dedicated security contact channels reduces transparency in incident handling. No vulnerable libraries or exposed sensitive data were detected in the HTML content. Overall, while basic security measures are in place, the company should enhance its security documentation and implement additional headers to strengthen its security posture and compliance with regulations like GDPR and NIS2.

Recommendations

  1. Implement comprehensive security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to mitigate common web vulnerabilities.
  2. Publish explicit security policies and incident response procedures on the website to improve transparency and compliance.
  3. Establish a vulnerability disclosure program and provide a security.txt file to facilitate responsible reporting of security issues.
  4. Clarify WHOIS registration details to improve domain trustworthiness and reduce suspicion related to privacy protection.
  5. Enhance cookie consent mechanisms to ensure explicit user consent and compliance with GDPR and other privacy regulations.

Contact details published on the site

Addresses
Legal name
Clickadu
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Clickadu
Description
Clickadu is a leading ad network offering a comprehensive suite of advertising solutions for publishers and advertisers. From banner advertising to push notifications and pre-roll video ads
Key services
Banner ads, Popunder ads, Instant text message ads, InPage Push ads, Video Pre-roll ads, Skim ads
Content quality
excellent
Branding
consistent

Technology

Stack
Google Tag Manager, Yoast SEO plugin, Slick Carousel, Bootstrap, jQuery, WordPress
Frameworks
Bootstrap
Platforms
WordPress
Performance
fast
Mobile
excellent
Accessibility
good
SEO
excellent

Security

Observed score
85/100
Good practices seen
  • HTTPS enabled
  • No exposed sensitive data in HTML
  • Use of Google Tag Manager for analytics

Analytics and tracking

Services
Google Analytics via Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Clickadu
Tracking pixels
Google Ads
Marketing tools
Yoast SEO
Transparency
good

Site quality

Design
excellent
User experience
excellent
Content relevance
excellent
Navigation
excellent
Professionalism
excellent
Trustworthiness
high

Key observations

  1. Website is fully accessible with rich content and no blocking detected
  2. Professional ad network targeting publishers and advertisers globally
  3. Multiple ad formats offered with detailed descriptions and calls to action
  4. Strong social media presence and partner testimonials enhance credibility
  5. WHOIS data missing, which is a minor trust concern
  6. No explicit security or incident response policies found
  7. Good SEO and technical implementation with modern technologies
Technical notes

Notes

The website is built on a modern WordPress CMS platform using Bootstrap for responsive design and Slick Carousel for interactive UI elements. Google Tag Manager is used for analytics and advertising tracking, integrating Google Ads and other marketing tools. The site demonstrates fast loading performance and excellent mobile optimization. SEO is well-implemented with proper meta tags, Open Graph, and JSON-LD structured data. Accessibility features are present but could be further improved. No major technical debt or outdated libraries were detected. Hosting provider details are not explicitly available. Overall, the technical infrastructure supports a professional and scalable digital advertising platform.
Standards and sources

Reference chips under each finding point to the standard, regulation or specification the finding relates to. They are taken from the official datasets below and mapped conservatively: a finding with no defensible link shows none. NIS2 and GDPR references mark where a finding is relevant evidence, not a compliance verdict. Implementing Regulation (EU) 2024/2690 binds digital infrastructure and digital service providers; for other entities it is the most detailed public reading of the Article 21 measures. WCAG, EN 301 549, European Accessibility Act and Web Accessibility Directive references name the requirement an automated accessibility rule relates to; they are not a conformance verdict.

Retrieved 2026-10-25

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